cardiovascular+study+guide.docx

What occurs to heart rate and contractility with

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What occurs to heart rate and contractility with decreased blood pressure? How do the arterioles and veins respond to high blood pressure? Low blood pressure? What receptors sense blood pressure changes? Where are they found? What is the effect of the sympathetic system on blood pressure? What factors contribute to long-term blood pressure control?
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Sample Multiple Choice questions (these are NOT on topics that will be tested on your exam!) A heart murmur a. refers to words of love whispered in your ear b. things your professor might say in her sleep c. a complaint mumbled upon leaving cardiovascular class d. Something Billy Ray Cyrus sang in “Achy Breaky Heart” e. None of the above An incorrect statement about polycythemia is: a. it can be a result of fluid loss b. it may be due to a bone marrow tumour c. it results in high levels of RBC's d. it is normal and never dangerous e. it is stimulated by erythropoietin Hemophilia results from a. a deficiency of platelets b. inadequate haemoglobin production c. an inability to produce one of the clotting factors d. excess production of heparin e. inability of calcium to stimulate clot formation Viruses a. are single-celled microorganisms b. consist of only DNA in a protein coat c. must invade a host cell to carry out metabolism and to reproduce d. a and c e. b and c What advantages does the biconcavity of the erythrocyte impart on the cell? a. it increases the flexibility of the cell b. it increases the overall surface area of the cell c. it prevents toxins from entering the cell d. all of the above e. two of the above
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